Method for Online Cleaning of Air Preheaters
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United States of America Patent
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Issued Date -
Jan 13, 2011
app pub date -
Jul 8, 2009
filing date -
Jul 8, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of cleaning air preheaters of the type having a rotor which passes through a stream of flue gas and a stream of intake combustion air is disclosed. A soot blower is operated in step-wise fashion to blow a soot blowing medium through passageways in the rotor. The passageways are arranged in concentric rings and move at a tangential velocity which depends on the speed of the rotor and the location of the passageway relative to the center of the rotor. In the present method the speed of the rotor is adjusted in accordance with the position of the soot blower so that every passageway moves over the soot blower at the same or substantially the same tangential velocity.
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